content: /*
   * Copyright 2017 David Karnok
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package hu.akarnokd.reactive4javaflow;
  
  import hu.akarnokd.reactive4javaflow.impl.util.SpscCountDownLatch;
  import org.openjdk.jmh.annotations.*;
  
  import java.util.concurrent.*;
  
  /**
   * Example benchmark. Run from command line as
   * <br>
   * gradle jmh -Pjmh="CountDownLatchPerf"
   */
  @BenchmarkMode(Mode.Throughput)
  @Warmup(iterations = 5)
  @Measurement(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS)
  @OutputTimeUnit(TimeUnit.SECONDS)
  @Fork(value = 1)
  @State(Scope.Thread)
  public class CountDownLatchPerf {
  
      @Benchmark
      public boolean standard() {
          CountDownLatch cdl = new CountDownLatch(1);
          cdl.countDown();
          return cdl.getCount() == 0;
      }
  
      @Benchmark
      public boolean spsc() {
          SpscCountDownLatch cdl = new SpscCountDownLatch();
          cdl.countDown();
          return cdl.getCount() == 0;
      }
  
  }